111山東省泰安市肥城市第三中學(xué)高一英語人教版必修2Unit 3 ComputersReading學(xué)案【 學(xué)習(xí)目標(biāo)】在本節(jié)課結(jié)束時，學(xué)生能夠了解計算機的發(fā)展歷程及其在當(dāng)今社會的廣泛應(yīng)用?！緦W(xué)習(xí)重點，難點】計算機相關(guān)知識及計算機的發(fā)展歷史?！菊n型】Reading 【回顧復(fù)習(xí)】1). Review the language points learned in the last unit.2). Read the new words and expressions used in the passage to make sure of the understanding of the passage. 【新知識學(xué)習(xí)】Step1. Warming up Pre-reading：1. Do you often use computers? Do you really know computers?_Look at the pictures in P17 and answer the three questions.1) 2) 3) Step2. Skimming:1. Look through the passage to find out who the speaker is. 2. What is the main idea of the whole passage? （ ） A. The early development of the computer. B. The late development of the computer. C. The importance of the computer. D. The history of the computer. 3. In what order is this passage arranged(安排）? 4. Which type / style does the text belong to ?A. Description(描寫) B. Narration(敘述)C. Exposition(說明) D. Argumentation(議論)4 . The writer use the title WHO AM I . What kind of literary devices (修辭)does the text use? Step3. Fast- reading & Careful-reading: 1. Read the text quickly to find the topic sentence of each paragraph.2. Read each paragraph carefully and find out the supporting details for each topic sentence.   Paragraph one Topic sentence Supportingdetails1.calculating machine(1642 in France)2. 3. 4.PC5. . Paragraph two Topic sentence Supportingdetailstubes 2. 3. 4.network Paragraph threeTopic sentence Supportingdetails 1. communications 2. 3. 4. robots5. 6. 7. space rockets3.Read the text again and do the True or false exercises:1.Alan Turing built an Analytical Machine to solve any mathematical problems. ( )2.People began to realize that the computer got cleverer and quicker with time passing. ( )3.The computer began to serve the human race since it was brought into peoples homes. ( )4.Since the 1970s, the computer was used by people around the world through the Internet. ( )5. The larger the computer is, the more memory it has. ( )【當(dāng)堂達標(biāo)】Summary I was born as a _ machine in 1642. When I was young, I was good at_ difficult sums. About 2 hundred years had passed before I could think _ and produce_ answers. At that time, I was called an _ machine. In 1936, I was built as a _ machine . I had the ability to _any mathematical problem. From then on, I grew rapidly both in _ and memory. Later I stored my memory on _instead of in _. I became _ in size but _in intelligence. As time went by, I became even smaller, for I put my memory on a very small _, which made me become PC and laptop. In the 1960s, I could be connected with other computers by a _. From then on, I was able to share my knowledge with others through the _ _ _. After that, I had many new_. Now, I am glad to serve human beings as a _ _ and a pleasant _.【反思提升】 Discussion:1)How do you usually use computers in your daily life?_2)Work with your partners to list some advantages and disadvantages of the internet. Step4 【Homework】Read though the text, pay more attention on new language points.Finish the exercises on the newspaper about the text.Step 2. 1. Its a computer 2. D. 3. time 4.C 5. PersonificationStep 3 Over time , I have been changed quite a lot Analytical machine ; laptop These changes only become possible as my memory improved .Transistors ;small chips Since the 1970s many new applications have been found for me Finance trade mobile phones medical operations F T F T FCalculating simplifying logically quicker analytical universalSolve size transistors tubes smaller higher chip network WorldWideWeb applications devoted friend helper 111